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【单选题】
TCP/IP协议中的TCP是指A.
时间控制协议
B.
网际协议
C.
地址解析协议
D.
传输控制协议
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【单选题】听力原文：W: Whereas European nations have traditionally employed metric units such as meters and grams, the United States has employed English Units such as feet and pounds. M: Both systems are now in use...
A.
Weights and measurements.
B.
Political systems.
C.
Employment.
D.
Money.
【单选题】听力原文：W: Whereas European nations have traditionally employed metric units such as meters and grams, the US has employed English units such as feet and pounds. M: Both systems are now in use in the US,...
A.
European tradition.
B.
Employment.
C.
Weights and measurements.
D.
US political system.
【单选题】The United Nations ________ an international organization that tries to find peaceful solutions to world problems. [ ]
A.
is
B.
are
C.
was
D.
were
【单选题】听力原文：W: Whereas European nations have traditionally employed metric units such as meters and grams, the US has employed English units such as feet and pounds. M: Both systems are now in use in the US,...
A.
European tradition.
B.
Weights and measurements.
C.
Employment.
D.
US political system.
【单选题】The United Nations Conference on Drug Abuse that took place earlier this year in Vienna, was a very productive meeting. As never before, the nations of the world demonstrated a willingness to confront...
A.
ideological and individual differences
B.
production
C.
drug abuse
D.
nations of file world
【单选题】The United Nations Conference on Drug Abuse, which was held earlier this year in Vienna, was a very______meeting.
A.
productive
B.
protective
C.
obligatory
D.
compulsory
【简答题】水准网条件方程可以根据( )和( )条件建立。
【单选题】听力原文：W: Whereas European nations have traditionally employed metric units such as meters and grams, the United States has employed English units such as feet and pounds. M: Both systems are now in use...
A.
Weights and measurement.
B.
Political system.
C.
Employment.
D.
Money.
【简答题】阅读理解。 One Canada, Two Languages Canada is one of the few nations in the world to have two official languages: English and French. There are 10 provinces in the country but only one of these-Quebec is ...
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